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Senior Fastapi Developer Jobs in Laurel, MD (NOW HIRING)

SR. FRONTEND DEVELOPER

Mclean, VA · On-site

$116K - $153K/yr

Job Title: SR. FRONTEND DEVELOPER Location: Mclean,VA Duration: 12+ Months Visa: USC, GC, H1B and ... Integrate front-end applications with backend services (built with Python/FastAPI) and data sources ...

Develop secure, scalable backend services and APIs in Python using FastAPI and/or Django. Deliver ... Cloud Infrastructure & DevOps Architect, provision, and manage AWS infrastructure using ...

About The Role Expression is seeking an experienced Senior AI Platform Engineer to join their ... Develop high‑performance Python APIs and scalable backend services using FastAPI, asynchronous ...

Strong full-stack engineering across Python, FastAPI, ReactJS, PostgreSQL, and Docker. * Working ... senior management teams. Work Environment This job operates in executive settings with frequent ...

Strong full-stack engineering across Python, FastAPI, ReactJS, PostgreSQL, and Docker. * Working ... senior management teams. Work Environment This job operates in executive settings with frequent ...

Senior AI Software Engineer

Washington, DC · On-site

$138K - $182K/yr

Expression is seeking an experienced Senior AI Software Engineer and Technical Lead to lead the ... Develop high-performance backend services using Python, FastAPI, asynchronous programming, and ...

Expression is seeking an experienced Senior AI Platform Engineer to join our Product Team and ... Develop high-performance Python APIs and scalable backend services using FastAPI, asynchronous ...

Expression is seeking an experienced Senior AI Platform Engineer to join our Product Team and ... Develop high-performance Python APIs and scalable backend services using FastAPI, asynchronous ...

Senior Software Engineer

Arlington, VA · On-site

$141K - $186K/yr

They are seeking a Senior Software Engineer to develop high-performance API-driven services and ... Preferred : • Experience with Spring Boot, Flask, FastAPI, Django, or similar frameworks. • ...

Showing results 21-40

Senior Fastapi Developer information

See Laurel, MD salary details

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How much do senior fastapi developer jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for senior fastapi developer in Laurel, MD is $61.20, according to ZipRecruiter salary data. Most workers in this role earn between $51.97 and $68.65 per hour, depending on experience, location, and employer.

What does a Senior FastAPI Developer do?

A Senior FastAPI Developer designs, develops, and maintains backend web applications using the FastAPI framework in Python. They are responsible for building scalable APIs, optimizing performance, ensuring security best practices, and integrating with databases and external services. Senior developers also mentor junior team members, contribute to architecture decisions, and collaborate closely with front-end engineers and stakeholders to deliver robust software solutions.

What are the key skills and qualifications needed to thrive as a Senior FastAPI Developer?

To thrive as a Senior FastAPI Developer, you need deep expertise in Python, RESTful API design, and experience building scalable web backends, typically supported by a degree in computer science or related field. Familiarity with FastAPI, Docker, cloud platforms (such as AWS or Azure), and CI/CD tools is highly valued, along with proficiency in testing frameworks. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills enable the delivery of robust, efficient, and maintainable APIs that support business goals and high user demands.

What are some common challenges faced by Senior FastAPI Developers when scaling applications, and how can these be addressed?

Senior FastAPI Developers often encounter challenges related to managing high concurrency, optimizing API performance, and ensuring robust security as applications scale. To address these, it’s important to implement asynchronous programming practices, leverage efficient database queries, and utilize API gateways for better traffic management. Collaboration with DevOps and QA teams is also essential to automate deployments and monitor system health, ensuring smooth scaling and reliable user experiences.

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Cities near Laurel, MD with the most Senior Fastapi Developer job openings:

Senior AI/ML Lead/ Developer (Remote)

Cognizant Technology Solutions

Washington, DC • On-site, Remote

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 16 days ago


Cognizant rating

7.2

Company rating: 7.2 out of 10

Based on 86 frontline employees who took The Breakroom Quiz

52nd of 72 rated business consultants


Job description

Job Summary
We are seeking a highly skilled and innovative Senior AI/ML Engineer with strong expertise in Python, PySpark, Azure Machine Learning, Generative AI, and Full Stack Development to design and deliver advanced analytics and AI-driven solutions for global investment banking and brokerage operations.
The ideal candidate will combine deep technical expertise in machine learning, distributed computing, cloud-native AI platforms, and modern AI frameworks such as LangChain, LangGraph, RAG, Agentic AI Frameworks, FastAPI, and Azure OpenAI Service. This role requires close collaboration with business stakeholders to transform complex financial data into actionable insights that improve decision-making, reduce operational risk, and enhance operational efficiency.
Key Responsibilities
Machine Learning & Advanced Analytics
  • Design, develop, and deploy advanced machine learning models using Python and PySpark to analyze large-scale financial datasets and generate actionable business insights.
  • Build predictive, classification, clustering, anomaly detection, forecasting, and risk models supporting investment banking and brokerage functions.
  • Perform rigorous model validation, back-testing, and experimentation using historical and simulated market data.
  • Evaluate and implement appropriate statistical, machine learning, deep learning, and AI techniques based on business requirements and regulatory considerations.
  • Optimize model performance through feature engineering, hyperparameter tuning, algorithm enhancements, and distributed computing techniques.

Generative AI & Agentic Solutions
  • Design and implement enterprise-grade Generative AI solutions using Azure OpenAI Service.
  • Build and deploy Retrieval-Augmented Generation (RAG) applications leveraging vector databases and knowledge retrieval systems.
  • Develop intelligent agent-based systems using LangChain, LangGraph, and Agentic AI frameworks to automate business workflows and enhance decision support.
  • Apply Natural Language Processing (NLP), Large Language Models (LLMs), document intelligence, and conversational AI to streamline surveillance, reporting, compliance, and advisory functions.
  • Ensure safe, responsible, and governed adoption of Generative AI capabilities across the organization.

Python Full Stack Development
  • Design and develop scalable backend services and APIs using FastAPI.
  • Build microservices and AI application frameworks that integrate machine learning and GenAI capabilities into enterprise ecosystems.
  • Develop reusable and maintainable software components following modern software engineering best practices.
  • Implement API integrations, authentication mechanisms, monitoring, logging, and performance optimization strategies.

Data Engineering & MLOps
  • Design and implement scalable data pipelines and feature engineering workflows using Azure Machine Learning and cloud-native services.
  • Build reusable data products and machine learning components supporting multiple analytics and AI initiatives.
  • Partner with Data Engineering teams to operationalize machine learning models and AI applications.
  • Establish model monitoring, retraining strategies, experiment tracking, and lifecycle management processes.
  • Ensure solutions are secure, reliable, scalable, and production-ready.

Cloud & Azure AI Platform
  • Develop end-to-end ML and AI solutions using:
    • Azure Machine Learning
    • Azure OpenAI Service
    • Azure Data Lake
    • Azure Databricks
    • Azure Storage Services
    • Azure DevOps
  • Manage model deployment, monitoring, governance, and operationalization on Azure platforms.
  • Support enterprise-scale AI and analytics workloads while maintaining compliance and security standards.

Business Collaboration
  • Collaborate with product owners, business analysts, operations teams, and technology stakeholders to define high-value data science initiatives.
  • Translate complex investment banking and brokerage business challenges into measurable analytical solutions.
  • Present recommendations and analytical findings to both technical and non-technical audiences.
  • Drive adoption of AI and machine learning solutions through effective communication and stakeholder engagement.

Governance & Responsible AI
  • Promote responsible AI practices by evaluating model fairness, explainability, bias, security, and data quality.
  • Document assumptions, risks, methodologies, and limitations in a transparent and accessible manner.
  • Ensure adherence to regulatory requirements, model governance frameworks, and enterprise AI policies.

Leadership & Mentoring
  • Mentor junior data scientists, machine learning engineers, and developers.
  • Promote best practices in software development, experimentation, MLOps, AI engineering, and model governance.
  • Contribute to a culture of innovation, continuous learning, and technical excellence.

Required Qualifications
Technical Skills
  • 8+ years of experience in Data Science, Machine Learning, AI Engineering, or related fields.
  • Expert-level proficiency in Python and PySpark for large-scale data processing and model development.
  • Strong experience with:
    • FastAPI
    • REST APIs
    • Microservices Architecture
    • Object-Oriented Programming
    • Software Engineering Best Practices
  • Hands-on experience with:
    • LangChain
    • LangGraph
    • RAG Architectures
    • Agentic AI Frameworks
    • LLM Application Development
  • Strong expertise in:
    • Azure Machine Learning
    • Azure OpenAI Service
    • Azure Databricks
    • Azure Data Lake
    • MLOps and CI/CD Practices
  • Experience developing and deploying enterprise-grade AI/ML solutions in cloud environments.

Machine Learning & AI
  • Deep understanding of:
    • Supervised Learning
    • Unsupervised Learning
    • Deep Learning
    • Ensemble Methods
    • NLP
    • Time-Series Forecasting
    • Anomaly Detection
    • Risk Modeling
  • Strong understanding of model evaluation, feature engineering, experimentation, validation, and explainability.

Domain Experience
  • Prior experience supporting:
    • Investment Banking
    • Capital Markets
    • Brokerage Operations
    • Trade Surveillance
    • Risk Management
    • Front Office or Middle Office Functions
  • Understanding of financial products, market data, and regulatory expectations is highly desirable.

Soft Skills
  • Excellent communication and stakeholder management skills.
  • Ability to explain complex technical topics to non-technical audiences.
  • Strong analytical and problem-solving capabilities.
  • Experience working effectively within distributed and hybrid teams.

Preferred Qualifications
  • Experience with vector databases such as Pinecone, Azure AI Search, Weaviate, or ChromaDB.
  • Knowledge of containerization technologies including Docker and Kubernetes.
  • Experience with CI/CD pipelines and DevOps practices.
  • Exposure to Responsible AI, Model Risk Management, and AI governance frameworks.
  • Azure certifications in AI, Data Science, or Machine Learning.

*Please note this role is not able to offer visa transfer or sponsorship now or in the future*
We're excited to meet people who share our mission and who can make an impact in a variety of ways. Don't hesitate to apply-even if you only meet the minimum requirements. Think about your transferable experiences and unique skills that make you stand out.
Salary and Other Compensation:
Applications will be accepted until Sept 07, 2026,
The annual salary for this position is between $ 90,000 - $ 150,000 depending on experience and other qualifications of the successful candidate.
This position is also eligible for Cognizant's discretionary annual incentive program, based on performance and subject to the terms of Cognizant's applicable plans.
Benefits: Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:
  • Medical/Dental/Vision/Life Insurance
  • Paid holidays plus Paid Time Off
  • 401(k) plan and contributions
  • Long-term/Short-term Disability
  • Paid Parental Leave
  • Employee Stock Purchase Plan

Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
About Cognizant:
Cognizant (Nasdaq: CTSH) is an AI Builder and technology services provider, bridging the gap between AI investment and enterprise value by building full-stack AI solutions for our clients. Our deep industry, process and engineering expertise enables us to build an organization's unique context into technology systems that amplify human potential, drive tangible outcomes and keep global enterprises ahead in a fast-changing world. See how at cognizant.ai or @cognizant.
Additional employment information
Compensation information is accurate as of the date of this posting. Cognizant reserves the right to modify this information at any time, subject to applicable law.
Applicants may be required to attend interviews in person or by video conference. In addition, candidates may be required to present their current state or government issued ID during each interview.
Cognizant is an equal opportunity employer. Your application and candidacy will not be considered based on race, color, sex, religion, creed, sexual orientation, gender identity, national origin, disability, genetic information, pregnancy, veteran status or any other characteristic protected by federal, state or local laws.
If you have a disability that requires reasonable accommodation to search for a job opening or submit an application, please email [email protected] for roles based in the Americas or [email protected] for roles based in India.

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